... 下游方面 downstrean side 上游方向 updrift 洄游方向 direction of migration ...
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warm-updrift 加热漂移
updrift side 上游方向
Bypassing: movement of sand from the accreting updrift side of a structure, inlet or harbour entrance to the eroding downdrift side.
UNESCO: L O S S A R Y
Updrift: direction opposite to the predominant movement of longshore transport.
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